单选题A Plants in Hawaii.B Uses for cold seawater.C Techniques for protecting environment.D The importance of saving energy.
题目
单选题
A
Plants in Hawaii.
B
Uses for cold seawater.
C
Techniques for protecting environment.
D
The importance of saving energy.
相似考题
参考答案和解析
正确答案：
B
解析：
[考点]主旨题。录音提到“What these engineers have been using is cold seawater.”接下来作者谈论这种cold seawater的用途。
[考点]主旨题。录音提到“What these engineers have been using is cold seawater.”接下来作者谈论这种cold seawater的用途。